Film pack with resilient waste handling means

ABSTRACT

A film pack for use in a processing camera is loaded with a plurality of film units each including processing materials releasably coupled to an image-recording section. After each film unit has been exposed, it is moved endwise between a pair of processing rollers in the camera for initiating processing of the film unit. Beyond the roller nip, the processing materials are separated from the image-recording section and are guided around one of the rollers to a storage compartment in the film pack casing. A spring member resiliently urges the processing materials against the one processing roller for facilitating delivery of the separated materials to the storage compartment and for retaining such materials in proper position in the storage compartment. When the film pack is removed from the camera, the same spring member urges the separated materials against a surface of the film pack casing for maintaining such materials in proper position.

United States Patent [191 Harvey FILM PACK WITH RESILIENT WASTE HANDLINGAN 7,. .7 [75 l inventor: Donald M. Harvey, Webster, N.Y. [73] Assignee:Eastman Kodak Company,

Rochester, NY. [22] Filed: July 5, 1972 [21] Appl. No.: 268,935

[52] US. Cl. 95/19, 95/13 [51] Int. Cl. G03b 19/10 [58] Field of Search95/19, 13, 14, 22,

[56] References Cited UNITED STATES PATENTS 3,673,939 7/1972 Harvey95/19 X Primary Examiner-Richard L. Moses Attorney-W. H. J. Kline et al.

[57] ABSTRACT A film pack for use in a processing camera is loaded 1Oct. 9, 1973 with a plurality of film units each including processingmaterials releasably coupled to an image-recording section. After eachfilm unit has been exposed, it is moved endwise between a pair ofprocessing rollers in the camera for initiating processing of the filmunit. Beyond the roller nip, the processing materials are separated fromthe image-recording section and are guided around one of the rollers toa storage compartment in the film pack casing. A spring memberresiliently urges the processing materialsagainst the one processingroller for facilitating delivery of the separated materials to thestorage compartment and for retaining such materials in proper positionin the storage compartment. When the film pack is removed from thecamera, the same spring member urges the separated materials against asurface of the film pack casing for maintaining such materials in properposition.

19 Claims, 7 Drawing Figures PATENTEDHBT ems SHEET 2 0F 4 PATENIEUUBI919m 3.763.754

saw u or 4 FIG. 7

FILM PACK WITH RESILIENT WASTE HANDLING MEANS BACKGROUND OF THEINVENTION The present invention relates to film packs loaded with aplurality of self-processing film units each including processingmaterials releasably coupled to an image-recording or print section.More particularly, the invention is directed to means for facilitatingthe automatic separation, transportation, and storage of the processingmaterials.

The invention pertains most directly to film units, packs, and cameras,generally of the type illustrated and described in my US. Pat.applications, Ser. No. 1 11,467 entitled Photographic Apparatus, Ser.No. 111,471 entitled Film Unit, both filed on Feb. 1, 1971 and nowabandoned, and Ser. No. 268,940 entitled Film Handling Improvement,filedon even date herewith.

Briefly, the film units include an image-recording or print sectionandprocessing materials, such as a container or pod for supplying aprocessing composition, that are releasably coupled to theimage-recording section. The film pack includes an assemblage orplurality of the film units received in a casing, and the camera isprovided with means for sequentially exposing and effecting processingof the film units. After the initiation of processing, the separableprocessing materials are directed around one of the pressure-applyingmembers to a storage compartment in the film pack casing, while the image-recording section moves along a different path separating it fromthe processing materials and rendering it accessible from the cameraexterior. Each successively exposed film unit is processed in the samemanner, and the successively separated processing materials are stackedin the storage compartment. After all of the available film units havebeen exposed and processed,- the film pack can be removed from thecamera and discarded along with the collected processing materials,thereby eliminating the need for the photographer to handle suchmaterials.

As also is disclosed in or will become apparent from the above-mentionedapplications, the mechanisms for transporting the various film unitparts within and from the camera should be capable of accomplishing avariety of functions under different conditions in the transporting andprocessing cycles. By way of example only, a first feeding mechanismemploying reciprocatory movement may be employed for moving the filmunits from their exposure position into engagement with thepressure-applying members. Then, one or both of the members can berotated in engagement with the filrn unit to transport the film unitbetween and progressively push it beyond the rollers. Finally, anadditional or supplemental pusher can be employed to effect the finalmovement of the processing waste materials into the collecting chamber.Similarly, sprocket teeth, or the like, may be employed with thepressure-applying members for engaging perforations in the film unit topush the processing materials beyond the processing nip and into thestorage chamber.

While the above-mentioned mechanisms are considered satisfactory fortheir intended purposes, still more reliable and less complex mechanismshave been sought, especially for effecting movement of the processing orwaste materials beyond the nip between the pressure-applying memberswhen transporting forces become substantially more difficult to apply tothe film unit.

SUMMARY OF THE INVENTION In accordance with the present invention,improved means are provided for facilitating transporting of theexhausted processing materials or other film unit parts beyond the nipbetween the pressure-applying members without requiring sprockets oradditional driving mechanisms. Still further, the same means also can beused for retaining such materials or parts in their storage positionwhen the film pack has been removed from the camera.

An object of the invention is to improve the operation of theabove-mentioned types of packs and cameras by providing improved meansfor maintaining the processing waste materials in resilient engagementwith a driving roller comprising one of the pressure-applying memberswhile such materials progressively are moved beyond the nip between themembers.

Another object of the invention is to provide improved means forretaining the processing waste materials in the storage compartment ofthe film pack casing when the film pack is removed from the camera.

An additional object of the invention is to provide means for supportingand guiding the central sections of the processing waste materials assuch materials are moved progressively beyond the nip between thepressnre-applying members and into the storage compartment.

Still another object of the invention is to accomplish one or more ofthe above-mentioned objects without requiring additional moving parts orsupplemental driving mechanisms in the camera. 7

A further object of the inventionis to achieve the foregoing objectivesby simple and reliable means capable of being incorporated in the filmpack without significantly complicating or increasing the productioncosts thereof.

In accordance with a preferred embodiment of the invention, these andother objects are accomplished by providing the film pack\casing withresilient means such as a leaf spring for engaging a rotatably drivenpressure-applying member at a central location spaced circumferentiallyaround that member from the nip between the members and in the intendedpath of movemerit of the processing waste materials. As the wastematerials are directed around the driven member, they enter between thatmember and the resilient means for increasing the frictional pressuretending to drive the waste materials into the storage compartment whilealso aiding in guiding the materials along their intended movement path.After entering the storage compartr'nent, further movement of theprocessing materials is blocked with their trailing ends still held incontact with the driven pressure member to retain the materials in theirstored position. When the exhausted film pack is removed from thecamera, the same resilient means then urges the waste materials againstan edge surface of the casing and thereby continues to maintain thewaste materials in their proper stored position.

Various means for practicing the invention and other advantages andnovel features thereof will be apparent from the following detaileddescription of an illustrative preferred embodiment of the invention,reference being made to the accompanying drawings in which likereference characters denote like elements.

BRIEF DESCRIPTION OF THE DRAWINGS In the drawings:

FIG. I is a perspective view of a self-processing film unit usable withthe present invention;

FIG. 2 is an exploded view of the film unit depicted in FIG. 1;

FIG. 3 is a perspective view of a film pack containing a plurality ofthe film units depicted in FIGS. 1 and 2;

FIG. 4 is a perspective view illustrating the relation of the film packto the basic components of a processing camera in which the film pack isinstalled; and

FIGS. 5 7 are enlarged side elevational views of a portion of thestructure depicted in FIG. 4 partially cross-sectioned along line 55 ofthat figure, showing the manner in which processing waste materials aresuccessively delivered into a storage compartment and retained in storedposition in accordance with the invention.

DESCRIPTION OF THE ILLUSTRATIVE PREFERRED EMBODIMENT Because processingcameras and self-processing film units are well known, the presentdescription will be directed in particular to elements forming part ofor cooperating more directly with the present invention. Camera and filmelements not specifically shown or described herein are selectable fromthose known in the prior art.

The illustrative film unit 10 depicted in FIGS. 1 7 of the accompanyingdrawings comprises an imagerecording or print section 12, processingmaterials such as a fluid container or pod 14, and a carrier sheet 16including means for releasably coupling the container or pod to theimage-recording section.

As best illustrated in FIG. 2, the image-recording section comprises aphotosensitive element or first sheet 18 and a transparent cover orprocess sheet 20 that are permanently secured together along theirlateral and trailing edges as shown by the shaded areas 22 in thatfigure. For purposes of clarity, permanent connections between thedifferent elements of the film unit are depicted by areas shaded withdots and separable connections are illustrated by areas shaded withdashes. Mask sheets 24 and 26 are permanently bonded to thecorresponding outer faces of the photosensitive and process sheets andinclude respective openings 28 and 30 that define the image or picturearea of the image-recording section. The trailing end portions of thetwo sheets 18 and 20 are provided with respective rectangular openings32 and 34 that are staggered relative to each other so that each opening32 straddles the separating bar between two of the confronting openings34. A very thin sheet of moisture resistant material 36 is folded andcemented to itself along its lateral edges 38 and is bonded to theconfronting surfaces of the photosensitive and process sheets along itsleading edges as shown by bonding areas 40. Sheet 36 thus forms anenvelope that isopen at its leading end to receive excess processingfluid driven beyond the picture area of the recording section during theprocessing operation. Because the envelope provided by sheet 36 liesbetween the opposed openings 32 and 34 in the two sheets 18 and 20, theenvelope can expand slightly into those openings to accommodate theexcess processing fluid. The staggered alignment of openings 32 and 34tends to prevent the fluid from being squeezed out of the trap byaccidental finger pressure. This particular type of imagerecording orprint section is designated as a preregistered integral unit with apermanently attached trap. The term preregistered" refers to the factthat the photosensitive sheet and the process sheet are superposed orregistered prior to exposure, preferably at some stage during themanufacture of the film unit, and the term integral" to the fact thatthe two sheets are permanently maintained in superposed or registeredrelation after processing.

The carrier sheet 16 of the film unit is made of resilient sheetmaterial, preferably plastic, and is permanently attached at its leadingend to a transverse metal stiffener bar 42 of the type disclosed ingreater detail in my aforementioned U.S. Pat. application, Ser. No.268,940 entitled Film Handling Improvement, filed on even date herewith.The tips 44 of the stiffener bar extend beyond the lateral edges of thecarrier sheet, the leading end of which is substantially the same widthas the image-recording section. The trailing end of the carrier sheet ispreferably cut to define a tongue 46 that is narrower than the width ofthe image-recording section. This tongue, in turn, is separably bondedto that section by means of a rupturable adhesive 48, or the like,applied to the trailing end surface of the tongue confronting thecorresponding portion of mask sheet 24.

The two sheets 18 and 20 of the image-recording section are rectangularand coextensive with one another and are permanently joined along theirlateral edges or margins, as previously mentioned, whereby their centralexposure regions are maintained in registration but may be spread apartsufficiently to permit the distribution of a processing composition orfluid therebetween. The photosensitive sheet is exposed through thetransparent process sheet and, after processing, the final image orprint is viewed from the opposite side, thus providing a positiveright-reading image without recourse to image-reversing mirrors or thelike in the camera. Further details of such a film unit are illustratedand described in German Offenlegungschrift No. 2,052,145, published Ap.29, 1971.

The container or pod 14 that initially contains the processing fluidcomposition is permanently cemented to the carrier sheet 16 between theleading end of the image-recording section and the stiffening bar at theleading end of the carrier sheet. As best depicted in FIG. 2, theprocessing fluid pod comprises a single sheet 50 of a tough,vapor-impervious material that is chemically inert to the relativelycaustic processing fluid, representative examples of which are disclosedin a number of patent references well known to those skilled in the artof self-processing cameras. Typically, the pod sheet 50 comprises a webof paper or plastic laminated to a thin layer of lead foil. Sheet 50 isfolded along one edge as shown at numeral 52 and is sealed along itslateral margins 54 by a permanent cement or adhesive or by means of anappropriate heat sealing operation or the equivalent. A rupturable orseparable transverse joint or seal 56 extends between the permanentlysealed margins 54 of sheet 50, thus defining a rupturable separationbetween the processing fluid chamber 58 and the funnel portion 60 of thepod. The pod funnel 60, in turn, is inserted between the leading edgesof the photosensitive and process sheets but is not cemented orotherwise mechanically attached directly to either sheet. When theprocessing fluid pod passes through the nip between two opposed pressuremembers in the camera, the resulting hydraulic forces developed withinchamber 58 cause joint 56 to rupture so that the processing fluid isdelivered between the two sheets of the image-recording section throughfunnel 60 and is distributed across the exposed image on thephotosensitive sheet. As previously described, excess processing fluiddriven beyond the exposed image is collected in the envelope or chamberprovided by trap sheet 36.

A plurality of film units of the type described above are supplied in afilm pack or magazine 62, best illustrated in FIGS. The box-like casing64 of the film pack is made of plastic or sheet metal and includes aforwardly facing exposure window 66. The film units are initially housedin stacked relation in film compartment 68, as shown in FIG. 5, withtheir imagerecording sections in alignment with exposure window 66. Aspring-loaded pressure plate is located behind the film units in thefilm compartment and is biased forwardly to compress the stack of filmunits against the front wall 70 of the casing. A support spring 72,shown in FIGS. 5 7, is carried by the pressure plate and resilientlyurges the pod portions of the film units forwardly against guide rails74 carried by the front casing wall 70. Initially, an opaque coverelement is located forwardly of the forwardmost film unit to protectthat unit from ambientlight. This cover element is substantiallyidentical to the film units except that no pod is provided on itscarrier sheet 76 and an opaque disposable card 78 is substituted for theimage-recording section. The forward edge 80 of the casing end wall 82is located slightly rearwardly of the plane defined by the cover elementor the forwardmost film unit to permit that cover element or film unitto be moved endwise out of the casing through exit opening 84. A pair ofIongitudinal slots 86 in the front casing wall join opening 84 and allowa feeder mechanism to engage the stiffener bar of the cover element orthe forwardmost film unit to initiate its endwise movement out of thecasing.

As shown in FIG. 3, the leading end portion of the film pack casing issufficiently wide to accommodate the stiffener bars of the cover elementand the film units, and the remainder of the casing conforms to thewidth of the image-recording sections to maintain the film units instacked alignment with each other in the film compartment. 7

Behind the portion of the film pack initially contain ing the film unitpods, the film pack casing extends beyond end wall 82 to provide a chuteor porch As shown in FIGS. 5-7, lip 90 along the rearward edge of easingend wall 82 is spaced from the back casing wall 92 to provide anentrance opening 94 through which processing waste elements of the filmunits can be inserted into an internal storage compartment 96 defined byan internal casing element 98 comprising an internal end wall 100 and aninternal central wall 102. In accordance with a preferred embodiment ofthe present invention, a leaf spring member 104 is centrally locatedwithin the storage compartment 96 and is attached to the back casingwall 92 by means of a rivet 106 or the equivalent. As described indetail below, spring 104 extends through the entrance opening to thestorage compartment and is bowed forwardly so that its inherentresiliency urges it toward clamping surface 108 along the rearward edgeof easing tip 90.

The housing of a camera adapted to use the illustrative film pack ispartially depicted at numeral 110 in FIGS. 4 6 and is provided with ahinged rearward cover door 112 that can be opened to permit insertion ofthe film pack into the housing. Within the housing, the camera containsa processing mechanism including a slidably supported feeder plate 114and a pair of processing rollers 116 and 118. The rearward or driveroller 118 is rotatably supported in fixed relation to the camerahousing by its end shafts 1120 and is adapted to be driven in thedirection shown by arrow 122 by an appropriate drive mechanism, notshown. The end shafts 124 of the forward roller 1116 are carried by abracket partially shown at numeral 126, which is pivotally attached tothe camera housing by pins 128. A pair of relatively strong springs biasbracket 126 rearwardly to provide a firm but yieldable pressure at theroller trip, which is aligned with a slot 132 in the adjacent end wallof the camera housing. A pair of resilient flaps 134 cover slot 132 toprevent light or foreign materials from entering the camera housingthrough that slot.

When the film pack is in its illustrated loaded position within thecamera housing, it is engaged by appropriate support surfaces, notshown, whereby the photosensitive surface of a film unit exposablethrough the exposure window 66 is located in coincidence with the focalplane of the camera lens. This location of the film pack within thecamera housing also aligns the cover element or forwardmost film unitwith the nip between the two processing rollers and causes fingers 136of feeder plate 114 to extend into the film compartment through slots 86as shown in solid lines in FIGS. 4 and 5.

After the film pack has been loaded into the camera and the cover doorhas been closed, but before the first available film unit can beexposed, energization of the processing mechanism causes the feederplate to move fingers 136 to the position shown in broken lines in FIG.5 and to initiate the rotation of roller 118 in the direction shown byarrow 122. Because specific details of the drive mechanism that actuatesthe feeder plate and the drive roller are not necessary to understandingthe invention, such details have been omitted from the presentdisclosure. Suitable means adapted to perform those functions and otherrelated functions are disclosed, for example, in my US. Pat. applicationSer. No. 268,937 entitled Photographic Apparatus, filed on even dateherewith.

As fingers 136 move from the position shown in solid lines to theposition shown in broken lines in FIG. 5, they engage the trailing edgesof the tips 44 of the stiffener bar attached to the leading end of thecover element and thereby force the cover element endwise to introducethat bar into the roller nip as shown at numeral 44a. By reference toFIG. 4, it will be seen that the forward roller 116 is provided withreduceddiarneter segments 1138 at its opposite ends to allow fingers 136to drive the stiffener bar completely into the roller nip. As soon asthe stiffener bar has entered the nip, the rotation of roller 1 18drives the bar through the trip as roller 1 16 is concurrently rotatedin the opposite direction shown by arrow 140. Beyond the roller nip, thetips of the stiffener bar encounter the arcuate faces 142 of deflectingfenders or guide shoes 144, which direct the bar rearwardly aroundroller 118 as the cover element continues to be driven through the nipby frictional engagement with the rollers. Further details of theseguide shoes and the manner in which they function are disclosed in mypreviously mentioned US. Pat. applications, Ser. No. 11!,467 and Ser.No. 268,940. The stiffener bar is therefore driven between roller 118and spring member 104 as shown at numeral 44b in FIG. and slides alongthat spring into the storage compartment. When the leading end of thecover member card 78 emerges through the roller nip, its inherentstiffness causes it to continue moving in a generally flat plane betweenguide shoes 144 and into housing slot 132. Consequently, the connectionbetween the cover element carrier sheet 76 and card 78 is peeled apartand roller 1 l8 continues to drive the latter carrier sheet into thefilm compartment because of the frictional contact maintained betweenthe carrier sheet and roller 118 by spring 104. When the stiffener barat the leading end of the carrier sheet encounters wall 100 of thestorage compartment, the carrier sheet ceases its endwise movement androller 118 simply slips against the confronting carrier sheet surface.Thereupon, the drive mechanism discontinues rotation of roller 118 andreturns the feeder plate to its initial position, and the pressure platemoves the stack of film units forwardly to locate the forwardmost filmunit in proper position for exposure.

After the forwardmost film unit has been exposed, the drive mechanism isagain energized and performs in exactly the same manner described aboveto feed the stiffener bar of that film unit into the nip between therotating rollers. The subsequent movement of the pod through the rollernip produces internal hydraulic pressure that ruptures the pod seal 56along the funnel portion of the pod and allows the processing fluid tobe squeezed out of the pod and through the funnel so that it enters theimage-recording section between the leading edges of the photosensitivesheet and the process sheet. The stiffener bar of the film unitencounters the trailing tongue 46 of the preceding carrier sheet 76straddled by guide shoes 144 and is driven between that sheet and thedrive roller so that it moves into the storage compartment along theforwardly facing surface of that sheet. The stiffness of theimage-recording section causes it to separate from the carrier sheet andfunnel of the corresponding pod assembly, as shown in FIG. 6, so thatthe section emerges through slot 132 between flaps 134 as the carriersheet continues to be propelled into the storage compartment until itsstiffening bar abuts against internal wall 100. Before such abutmentoccurs, the tongue 46 of the carrier sheet is straddled by the guideshoes 144 so that the trailing portion of that sheet extends between theshoes in tangential relation to roller 118, as shown in FIG. 6. Becausethe carrier sheet of the cover member remains gripped between spring 104and roller 118 until the stiffening bar of the forwardmost film unit isdriven between that sheet and the roller, it will be seen that jarringor shaking of the camera cannot dislodge carrier sheet 76 from theposition at which it will properly guide the succeeding carrier sheetinto the storage compartment. Also because spring 104 is centrallylocated with respect to roller 118, its resilient force tends to preventbending or buckling of the carrier sheets as they are delivered into thestorage compartment.

By repeating the same operations of the rollers and the feeder platefollowing the exposure of each successive film unit, all of the wasteelements of the film units are delivered to the storage compartment instacked relation, thereby eliminating any need for the photographer tohandle those elements. When the exhausted film pack is removed from thecamera, spring 104 biases the entire stack of carrier sheets andexhausted pods into resilient contact with clamping surface 108 alonglip of the film pack casing, as shown in FIG. 7, whereby those elementsare not subject to falling out of the disposable casing or to beingaccidentally withdrawn therefrom.

Although the terms forward and rearward" have been used in describingthe two processing rollers and other elements of the illustrativeembodiment of the invention, it will be understood that those terms areused only with reference to the front and back aspects of the film packrather than the camera, inasmuch as the front wall of the film packmight face rearwardly in a camera of the type providing a folded opticalpath between camera lens and the film plane.

The invention has been described in detail with particular reference toan illustrative preferred embodiment thereof, but it will be understoodthat variations and modifications can be effected within the spirit andscope of the invention as described hereinabove and as defined in theappended claims.

I claim:

1. A film pack for use in a processing camera, the camera including arotatably driven roller, and the film pack comprising:

a first chamber section for receiving a plurality of unconnected filmunits, said first chamber section including means defining an aperturepermitting the exposure of film units in said first chamber section andan exit opening through which the film units are removable from saidfirst chamber section after their exposure;

a second chamber section for receiving at least a portion of the filmunits removed from said first chamber section, said second chambersection including means defining an entrance opening through which thefilm unit portions are movable into said second chamber section along apath extending between said exit and entrance openings around the drivenroller; and

means attached to said film pack for engaging the film unit portionsadjacent said entrance opening as they are moved in said path betweensaid exit and entrance openings and for resiliently urging the engagedportion against the rotatably driven roller to effect driving engagementbetween said portions and the roller.

2. A film pack as claimed in claim 1, wherein said means comprises aleaf spring extending from said second chamber section outwardly throughsaid entrance opening.

3. A film pack as claimed in claim 2, wherein said film pack defines alateral direction normal to the direction the film unit is removablethrough said exit opening, and wherein said leaf spring is centrallylocated relative to said film pack in said lateral direction for aidingin guiding the film unit portions into said second chamber section.

4. A film pack as claimed in claim 1, including an end wall between saidexit and entrance openings, and wherein said means is located andarranged to resiliently urge any film unit portions in said secondchamber section into holding engagement with said end wall when saidfilm pack is removed from the camera.

5. A film pack for supplying a plurality of film units to a processingcamera; the film units each including a first part for recording avisibly presentable image and a second part separably coupled to thefirst part for aiding in the establishment of that image; the cameraincluding a rotatably driveable pressure-applying member, a secondpressure-applying menber juxtaposed with the rotatably driveable memberto define a nip between the members for applying compressive pressure tothe film unit, and deflecting means for bending the second part of thefilm unit into a movement path extending around the rotatably driveablemember; said film pack comprising:

a casing defining an exposure aperture, said casing including a firstcompartment having means for locating the film units in a position to beexposed through said aperture, and a second compartment locatedgenerally behind said first compartment relative to said aperture andhaving means for receiving the second parts of the film units in stackedrelation, said first compartment having an exit aperture through whichthe film units are removable from said first compartment for movementbetween the pressure-applying members, said second compartment having anentrance aperture through which the second parts of the film units areinsertable into said second compartment from the movement path extendingaround the rotatably driveable member; and

engagement means attached to said casing for 'resiliently urging thesecond parts of the film units into engagement with the driveable memberat an engagement location spaced around the member from the nip betweenthe members to increase the driving force transferred to the film unitby the driveable member at the engagement location.

6. A film pack as claimed in claim 5, wherein the engagement location isspaced around said driveable member by more than ninety degrees from thenip between the pressure-applying members.

7. A film pack as claimed in claim 6, wherein said engagement meansextends outwardly of said casing from said second compartment.

8. A film pack as claimed in claim 5, wherein said entrance aperture isdefined in part by a wall of said casing and said engagement means islocated and arranged for resiliently urging the second parts of the filmunits into engagement with said wall to maintain the second film unitparts in said second compartment after said film pack is removed fromthe camera.

9. In a film pack for receiving a plurality of selfprocessing filmunits, the film units initially being housed in stacked relation in abox-like casing provided with an exit opening through which successiveones of the film units are removable from said casing for processing andan entrance opening through which a waste element of each of the filmunits is movable into a storage compartment in said casing to store saidwaste elements in stacked relation, said film pack being adapted for usein a self-processing camera including a rotatable processing rollercooperating with guide means engageable with' said waste element of afilm unit being removed from said casing to direct that elementpartially around said roller toward said entrance opening in saidstorage compartment; the improvement comprising a resilient membercarried by said casing and resiliently biased toward said roller whensaid film pack is loaded into said camera to resiliently urge a wasteelement partially encircling said roller into frictional engagement withsaid roller.

10. The improvement claimed in claim 9, wherein said resilient memberestablishes guide means for assisting in guiding the laterally centralportion of the waste element encircling said roller along a predeter-'mined path into said storage compartment through said entrance opening.

11. The improvement claimed in claim 9, wherein said resilient membercomprises an elongate leaf spring located centrally of said casing andextending into said storage compartment.

12. The improvement claimed in claim 9, wherein said casing includesmeans defining a clamping surface confronting said resilient memberadjacent said entrance opening, said resilient member being adapted toresiliently sandwich the stack of stored waste elements between saidresilient member and said clamping surface when said film pack isremoved from said camera after the film units initially housed thereinhave been processed.

l3. Photographic apparatus for use with a selfprocessing film unit, thefilm unit including a first part for recording a visibly presentableimage and a second part for aiding in the establishment of that image,said apparatus comprising:

a casing including means defining a first portion for receiving the filmunit in a position for exposure and a second portion for receiving thesecond part of the film unit after exposure of the film unit;

a pair of juxtaposed pressure-applying members defining a niptherebetween for engaging and applying compressive pressure to the filmunit, one of said pressure-applying members being rotatably driveable;

a transporting mechanism for moving the film unit from said firstportion of said casing and between said pressure-applying members, saidmechanism including means for rotatably driving said onepressure-applying member in engagement with the film unit to push thefilm unit through said nip between said members;

means for deflecting the second part of the film unit into a movementpath extending around said one pressure-applying member and toward saidsecond portion of said casing; and

a force-applying element resiliently urged into engagement with said onepressure-applying member at an engagement location spaced around saidone member from said nip, said element lying in said movement path ofthe second film unit part to increase the driving force exerted on thesecond part by said driveable roller at said engagement location.

14. Photographic apparatus as claimed in claim 13, wherein the first andsecond parts of the film unit are separably coupled, and said deflectingmeans is effective to separate said second part from said first part.

15. Photographic apparatus as claimed in claim 13, wherein saiddeflecting means comprises a pair of spaced deflecting fenders extendingaround said one pressure-applying member for engaging the lateral edgesof the second part of the film unit, and said engagement location ofsaid force-applying element lies generally between said fenders.

16. Photographic apparatus as claimed in claim 15, wherein saidforce-applying element comprises a leaf spring extending from saidsecond portion of said casing to said engagement location and beyondsaid engagement location between said fenders.

17. A film pack for supplying a plurality of selfprocessing film unitsto a processing camera; the camera including means for sequentiallyexposing the film units, a pair of juxtaposed pressure-applying rollersdrivable in engagement with the film units for initiating processing ofthe film units as each film unit is exposed and for pushing the filmunits in a first direction extending tangentially from between therollers, and deflecting means for bending at least a portion of the filmunits away from the first direction into an arcuate movement pathextending around one of the pressure-applying rollers; said film packcomprising:

a casing including a first compartment for receiving the film unitsprior to their exposure and a second compartment for receiving at leastthe film unit portion of each film unit after its processing, said firstcompartment including means for defining an exposure aperture throughwhich the film units sequentially are exposable and an exit aperturethrough which the exposed film units sequentially are removable from thefirst compartment, said second compartment including means for definingan entrance through which at least the portions of the removed filmunits are insertable into the second compartment; and

guiding means permanently attached to said casing in said secondcompartment for cooperating with the camera deflecting means to extendthe arcuate movement path into said second compartment said guidingmeans including a guide surface located to be engaged by the film unitportions adjacent the one pressure-applying roller and to guide the filmunit portions in the arcuate movement path beyond the camera deflectingmeans.

18. A cartridge adapted to contain a plurality of film units, whereineach of said film units includes an imagerecording portion and anelement that can be separated from the image-recording portion andconstitute waste that must be disposed of, said cartridge comprisingfirst and second generally opposed side walls, a pair of edge walls,first and second end walls, said first side wall having an exposureaperture therethrough, a film unit exit slot disposed in said first endwall, means forming a separated element receiver in said first end wall,and guide means in said cartridge arranged to engage and guide saidseparated element into said receiver.

19. A cartridge as claimed in claim 18 wherein said guide means isformed by a spring member in said receiver.

1. A film pack for use in a processing camera, the camera including arotatably driven roller, and the film pack comprising: a first chambersection for receiving a plurality of unconnected film units, said firstchamber section including means defining an aperture permitting theexposure of film units in said first chamber section and an exit openingthrough which the film units are removable from said first chambersection after their exposure; a second chamber section for receiving atleast a portion of the film units removed from said first chambersection, said second chamber section including means defining anentrance opening through which the film unit portions are movable intosaid second chamber section along a path extending between said exit andentrance openings around the driven roller; and means attached to saidfilm pack for engaging the film unit portions adjacent said entranceopening as they are moved in said path between said exit and entranceopenings and for resiliently urging the engaged portion against therotatably driven roller to effect driving engagement between saidportions and the roller.
 2. A film pack as claimed in claim 1, whereinsaid means comprises a leaf spring extendiNg from said second chambersection outwardly through said entrance opening.
 3. A film pack asclaimed in claim 2, wherein said film pack defines a lateral directionnormal to the direction the film unit is removable through said exitopening, and wherein said leaf spring is centrally located relative tosaid film pack in said lateral direction for aiding in guiding the filmunit portions into said second chamber section.
 4. A film pack asclaimed in claim 1, including an end wall between said exit and entranceopenings, and wherein said means is located and arranged to resilientlyurge any film unit portions in said second chamber section into holdingengagement with said end wall when said film pack is removed from thecamera.
 5. A film pack for supplying a plurality of film units to aprocessing camera; the film units each including a first part forrecording a visibly presentable image and a second part separablycoupled to the first part for aiding in the establishment of that image;the camera including a rotatably driveable pressure-applying member, asecond pressure-applying member juxtaposed with the rotatably driveablemember to define a nip between the members for applying compressivepressure to the film unit, and deflecting means for bending the secondpart of the film unit into a movement path extending around therotatably driveable member; said film pack comprising: a casing definingan exposure aperture, said casing including a first compartment havingmeans for locating the film units in a position to be exposed throughsaid aperture, and a second compartment located generally behind saidfirst compartment relative to said aperture and having means forreceiving the second parts of the film units in stacked relation, saidfirst compartment having an exit aperture through which the film unitsare removable from said first compartment for movement between thepressure-applying members, said second compartment having an entranceaperture through which the second parts of the film units are insertableinto said second compartment from the movement path extending around therotatably driveable member; and engagement means attached to said casingfor resiliently urging the second parts of the film units intoengagement with the driveable member at an engagement location spacedaround the member from the nip between the members to increase thedriving force transferred to the film unit by the driveable member atthe engagement location.
 6. A film pack as claimed in claim 5, whereinthe engagement location is spaced around said driveable member by morethan ninety degrees from the nip between the pressure-applying members.7. A film pack as claimed in claim 6, wherein said engagement meansextends outwardly of said casing from said second compartment.
 8. A filmpack as claimed in claim 5, wherein said entrance aperture is defined inpart by a wall of said casing and said engagement means is located andarranged for resiliently urging the second parts of the film units intoengagement with said wall to maintain the second film unit parts in saidsecond compartment after said film pack is removed from the camera. 9.In a film pack for receiving a plurality of self-processing film units,the film units initially being housed in stacked relation in a box-likecasing provided with an exit opening through which successive ones ofthe film units are removable from said casing for processing and anentrance opening through which a waste element of each of the film unitsis movable into a storage compartment in said casing to store said wasteelements in stacked relation, said film pack being adapted for use in aself-processing camera including a rotatable processing rollercooperating with guide means engageable with said waste element of afilm unit being removed from said casing to direct that elementpartially around said roller toward said entrance opening in saidstorage compartment; the improvement comprising a resilient membercarried by said casing and resiliently biased toward said roller whensaid film pack is loaded into said camera to resiliently urge a wasteelement partially encircling said roller into frictional engagement withsaid roller.
 10. The improvement claimed in claim 9, wherein saidresilient member establishes guide means for assisting in guiding thelaterally central portion of the waste element encircling said rolleralong a predetermined path into said storage compartment through saidentrance opening.
 11. The improvement claimed in claim 9, wherein saidresilient member comprises an elongate leaf spring located centrally ofsaid casing and extending into said storage compartment.
 12. Theimprovement claimed in claim 9, wherein said casing includes meansdefining a clamping surface confronting said resilient member adjacentsaid entrance opening, said resilient member being adapted toresiliently sandwich the stack of stored waste elements between saidresilient member and said clamping surface when said film pack isremoved from said camera after the film units initially housed thereinhave been processed.
 13. Photographic apparatus for use with aself-processing film unit, the film unit including a first part forrecording a visibly presentable image and a second part for aiding inthe establishment of that image, said apparatus comprising: a casingincluding means defining a first portion for receiving the film unit ina position for exposure and a second portion for receiving the secondpart of the film unit after exposure of the film unit; a pair ofjuxtaposed pressure-applying members defining a nip therebetween forengaging and applying compressive pressure to the film unit, one of saidpressure-applying members being rotatably driveable; a transportingmechanism for moving the film unit from said first portion of saidcasing and between said pressure-applying members, said mechanismincluding means for rotatably driving said one pressure-applying memberin engagement with the film unit to push the film unit through said nipbetween said members; means for deflecting the second part of the filmunit into a movement path extending around said one pressure-applyingmember and toward said second portion of said casing; and aforce-applying element resiliently urged into engagement with said onepressure-applying member at an engagement location spaced around saidone member from said nip, said element lying in said movement path ofthe second film unit part to increase the driving force exerted on thesecond part by said driveable roller at said engagement location. 14.Photographic apparatus as claimed in claim 13, wherein the first andsecond parts of the film unit are separably coupled, and said deflectingmeans is effective to separate said second part from said first part.15. Photographic apparatus as claimed in claim 13, wherein saiddeflecting means comprises a pair of spaced deflecting fenders extendingaround said one pressure-applying member for engaging the lateral edgesof the second part of the film unit, and said engagement location ofsaid force-applying element lies generally between said fenders. 16.Photographic apparatus as claimed in claim 15, wherein saidforce-applying element comprises a leaf spring extending from saidsecond portion of said casing to said engagement location and beyondsaid engagement location between said fenders.
 17. A film pack forsupplying a plurality of self-processing film units to a processingcamera; the camera including means for sequentially exposing the filmunits, a pair of juxtaposed pressure-applying rollers drivable inengagement with the film units for initiating processing of the filmunits as each film unit is exposed and for pushing the film units in afirst direction extending tangentially from between the rollers, anddeflecting means for bending at least a portion of the film units awayfrom the first direction into an arcuate movement path extending aroundone of the pressUre-applying rollers; said film pack comprising: acasing including a first compartment for receiving the film units priorto their exposure and a second compartment for receiving at least thefilm unit portion of each film unit after its processing, said firstcompartment including means for defining an exposure aperture throughwhich the film units sequentially are exposable and an exit aperturethrough which the exposed film units sequentially are removable from thefirst compartment, said second compartment including means for definingan entrance through which at least the portions of the removed filmunits are insertable into the second compartment; and guiding meanspermanently attached to said casing in said second compartment forcooperating with the camera deflecting means to extend the arcuatemovement path into said second compartment, said guiding means includinga guide surface located to be engaged by the film unit portions adjacentthe one pressure-applying roller and to guide the film unit portions inthe arcuate movement path beyond the camera deflecting means.
 18. Acartridge adapted to contain a plurality of film units, wherein each ofsaid film units includes an image-recording portion and an element thatcan be separated from the image-recording portion and constitute wastethat must be disposed of, said cartridge comprising first and secondgenerally opposed side walls, a pair of edge walls, first and second endwalls, said first side wall having an exposure aperture therethrough, afilm unit exit slot disposed in said first end wall, means forming aseparated element receiver in said first end wall, and guide means insaid cartridge arranged to engage and guide said separated element intosaid receiver.
 19. A cartridge as claimed in claim 18 wherein said guidemeans is formed by a spring member in said receiver.